Free energy is everywhere around us. There are many ways to make and collect energy from various sources like sun, wind and water. People also realize that everyday stuff can be a source of energy too. For example, riding a bike, running or just walking, etc. We simply have to change our way of thinking if we want to change the world.

    So comes the idea of solar roadways. Are they the road of future? Why use roads just for driving and collecting tolls (过路费)? Why don't we use them for collecting energy?

    The US Department of Transportation recently awarded $100,000 to Solar Roadways to build the first ever Solar Road Panel. So how do these future roads work?

    The Solar Road Panels will contain embedded (嵌入的) LEDs which “paint” the road lines from beneath to provide safer nighttime driving as well as to give drivers instant instructions such as detour (绕行) ahead. The road will be able to sense wildlife on the road and can warn drivers to “slow down”. There will also be embedded heating elements in the surface to prevent snow and ice buildup, providing safer winter driving.

    Replacing asphalt (沥青) roads and parking lots with Solar Roadway Panels will be a major step toward stopping climate change. Fully electric vehicles will be able to recharge along the roadway and in parking lots, finally making electric cars practical for long trips.

    We just can't wait to see more of these roads all over the world in the near future.

    One of the most important things in the world is friendship. In order to have friends, you have to be a friend. You have to be with them in both good and bad times. In return, they will be there for you. But how can you be a good friend?

    Listen. Listen when they are talking. Keep eye contact. Don't say anything unless they ask you a question. Sometimes you're not required to have anything to say; they just need someone to talk to about their feelings.

    Help them. If your friends are ever in need of something, be there to help them. You should try to put them first, but make sure you don't become their slave (奴隶). Try to take an extra pencil or pen with you to classes as they may forget to take one. Have a few extra dollars in your pocket in case they forget something they need.

    Be there for them. Try to make something for your friends to help make them feel better in hard times. Making cards and baking things are among the nicest things you can do for a friend when they are in hard times. Marilyn Monroe once said, "I'm selfish, impatient (急躁的) and a little insecure. I make mistakes, and I am out of control and at times hard to deal with. But if you can't handle me at my worst, then you surely don't deserve (值得) me at my best. " Always remember this! If you don't want to deal with your friends when they're depressed, then you don't deserve to be with them during those parties where you have a good time!

    Try to make plans with your friends. Go shopping, go for an ice cream, have a party, go to a movie and so on. Make time to know each other even better by doing something you both enjoy. These are the things you'll remember once you're all long graduated when looking back on your life!

    If you ever visit an English village, make sure to look out for morris dancing. Undoubtedly one of the strangest of English culture, morris dancing is a form of folk dancing that dates back to the 15th century. If you ever get the opportunity, you really have to see it.

    Men and women wearing old-fashioned, tattered(褴褛的)clothing dance in the street of towns and villages across the country during  the holiday periods. Women wear long，frilly (有 褶皱边的）skirts and men wear short trousers with bells attached to them. They dance to traditional folk music which is often played on traditional musical instruments.

    Some groups carry heavy black sticks which they bash (击打）against each other while they dance. Other groups wave handkerchiefs in the air whilst they perform. The dances are usually performed near a pub so that when it's over, the dancers and spectators (观众）can sing some traditional folk songs over a pint of beer. The festivities (欢庆）will often continue long into the night, by which point most people are too drunk to think about performing again.

    Morris dancing is a great English tradition but it's facing a big crisis (危机).As the years go by, fewer and fewer young people are joining morris dancing groups. The dancers are getting older and older and eventually, if nothing is done to change this trend, the tradition will die out within the next few decades.

    If you've ever had the fortune to see morris dancing, you may understand why teenagers aren't rushing to sign up. Putting it bluntly (直截了当地)，it's not exactly the coolest thing for an 18-year-old to be doing. Why dress up in bells and funny costumes when you could be going clubbing (逛夜店)？ Or playing sport? Or doing anything else?

    However, it would be a great shame to lose such a fun and vibrant (有活力的)part of England's history and culture. It's important to look after some traditions and customs especially when it's something as harmless and happy as morris dancing. So here's a toast to the next generation of would-be morris dancers! Let's hope they don't leave it too late.

    As scientists in the Netherlands tried to figure out how to build a super flying robot, they learned from one of nature s flyers: the humble fruit fly(果蝇).And by building this robot, they've gained new insights into how the fly carries out one of its dangerous tasks.

    The robot is called the DelFly Nimble Its wingspan(冀展)is about a foot wide. It has four wings that can beat at 17 times per second, which appear very delicate because they're made of the same material as space blankets.

    In the previous designs, they always had a tail, like a traditional airplane tail, said the robots main designer Matej Karasek. He's based at the Micro Air Vehicle Laboratory at Delft University of Technology in the Netherlands, and he and his colleagues published their findings on Thursday in Science

    “In the previous generations", he said, "flapping wings drove the robot forward while the tail helped to guide and stabilize it. But now the DelFly Nimble is completely controlled by the wings. The challenge then was actually combine the control into the wing movement, and that's what we achieved, Karasek said

    In the latest generation. the wings can each move individually or rotate(旋转)around the body of the robot in order to maximize the machine s agility(灵活 ) The robot can remain in one place in the air for about five minutes on a full battery or fly for more than a kilometer"， Karasek said, "And because the scientists are controlling all the movements, they can use the robot to learn more about how fruit flies actually carry out their dangerous tasks, which has caught the attention of biologists.”

    Hacking isn't just for computers and smartphones, According to a study published last week in the journal Science, scientists have found a way to hack a plant's genes in order to make it use sunlight more quickly. Someday, the results could increase the amount of food produced around the world.

    Photosynthesis（光合作用）is the word used to describe how plants use sunlight, water, and carbon dioxide to make their own food. Scientists who conducted the new study say this is a very slow process. Plants use less than 1 percent of the energy available to therm. But by hacking a plant's genes, the scientists were able to increase the amount of leaf growth on plants between 14 and 20 percent.

    "Specifically, scientists hacked the plant's protective system. Normally, this system is activated when a plant gets too much sunlight, "said scientist Krishna Niyogi, co-author of the study. When the plant senses the light, it gets rid of extra energy and creates more leaves. When the plant is in shade, the protective system is turned off, but the process is slow.

    Stephen Long is the lead author of the study. He compared a plant's protective system to light-adjusting glasses. When a person wears the glasses outside during the day, the lenses（镜片）darken and lighten depending on how sunny it is. Plants do the same thing, he said. But in plants the adjustment can take anywhere from 10 minutes to an hour. This makes it hard for plants to get the right amount of sunlight needed to create food.

    The new study sped up the process. By changing the plant's genes, the protective system turned on and off more quickly than normal. As a result, leaf growth on the plants scientists used in the study increased. Leaf growth in two plants increased by 20 percent, while leaf growth on a third plant increased by 14 percent. Scientists conducted the study on tobacco plants. But they think the genetic changes will produce the same results in corn and rice.

In 1991, Terry Gelber rented a stage at the Castillo Cultural Centre to perform his poetry. When asked by the booking agent what kind of poetry he wrote, his response was "Taxi Poetry".

While driving his taxi and reciting poetry, he noticed his taxi driver's licenses are also called "hack licenses". Then he thought for a moment and said, "Hack Poetry!" Thus "Hack Poetry" was born.

At the first reading of Hack Poetry, a fellow taxi driver and poet Tom Ostrowski joined Terry. The two cabbie poets read to an audience of six people plus one reporter from New York Magazine. Asked by Charles W. Bell of the New York Daily News what he called the growing group of taxi poets that appeared at readings, Gelber replied, "Did you see the movie Dead Poets Society?"

In 1992, a poetry contest was added and a television game show was produced for Manhattan TV. In the following years, Terry appeared as the Hack Poet at lots of events reading his Hack Poetry and writing poems for special days such as when an old taxi was put in the Museum of New York. After a successful business in 1999, the Hack Poet bought an old farm in the Catskill Mountains where he has been able to be close to nature and animals. Poets will be invited to share the loneliness of the hills in a place that thankfully has not quite moved into the 21st century.